US2628731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulically operated tractor shovel
Assignee: Caterpillar Global Mining LLC
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Filing: 1949-09-17
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Granted: 1953-02-17
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Expires: 1969-09-17
Abstract
No abstract record available.
Inventors
- 👤 Reuter Gottfried
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:08
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; F15B13/021; E; E02; E02F; E02F3/00; E02F3/04; E02F3/28; E02F3/34; E02F3/3414; E02F9/00; E02F9/20; E02F9/2004; E02F9/22; E02F9/2264; E02F9/2267
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |